rehsd

For my sound card, I plan to leverage previous work that I did for my 65816 system build. I will refactor the sound card to support my...

To practice my 65816 assembly, and refresh myself on Ben's 8-bit CPU... And an emulator running inside an emulator... 🙂 On my Windows...

In January of this year, I decided to try to build a new system based on the 65816 processor. It has now been almost five months, and I...

To enable more verbose debug logging at runtime, I have added a higher-resolution LCD. Communication from the 65816 is handled with SPI....

My sound card is now substantially complete, and I can continue working on system assembly code to better utilize it. I have the sound...

I now have the onboard SD Card (SPI for communication) working on my sound card. I ended up going without the hardware shift registers...

Continued from Sound Card 2.0 PCB Build (rehsdonline.com)... I now have playback working from the media ROM on the sound card....

I have received several inquiries from others wondering about building their own version of my 65816 motherboard. If you're interested in...

Continuing with my 65816 Emulator series, my 65816 PC build is now to the point where an emulator for my sound card would be helpful. I...

In this running post, I will share the buildout of my sound card for my 65816 PC. Having the PCB in hand, I can say this will be the...

As I'm learning and implementing assembly code for my 65816 PC, I'll post periodic updates here. I'm doing OK with the assembly so far,...

Back in January, I decided to start building a 65816 "PC." Up to that point, I had built a 6502 system with basic elements of a PC. The...

I'm working with what I have... I have a 65816 computer, and I want a USB mouse. I have a 6502 computer with USB mouse support. I have...

As I have now found some nice stability with my 65816 system running at 14.16 MHz, I thought I would come back to bus resistors and see...

I am working on the breadboard build of my Sound Card 2.0. I'll use this post for updates on my progress. I figure the breadboard build...

To facilitate developing new circuits for my 65816 system, I have designed an extension for my bus, leveraging the ISA physical...

With my 65816 system up and running, I can now start working on add-in cards. A simple one to start: an LCD. I designed the PCB to be...

Now that I have my 65816 motherboard working, I would like to improve speeds. The symptom that I see (and would like to improve) is that...

I'm getting close to having my 65816 PC updated with rev 1.1 PCBs (for the motherboard and video memory card). I have a plan for a USB...